Brief Symptom Inventory 18

BSI 18
A shortened form of the BSI instrument, The Brief Symptom Inventory 18 (BSI® 18) gathers patient-reported data to measure psychological distress and psychiatric disorders in medical and community populations. Guidance on using this test in your telepractice

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  • Test forms & reports

    Booklets, record forms, answer sheets, report usages & subscriptions

    3 options

    From £5.40
  • Support materials

    Manuals, stimulus books, replacement items & other materials

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    From £55.00
  • All products

    All tests and materials offered for BSI 18

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Prices include VAT where applicable
  • BSI 18 Hand-Scoring Profile Forms - Oncology Norms
    9780749154516 Qualification Level B

    Pack of 50


    Estimated to ship:More than 12 weeks
  • BSI-18 Q-global Digital Manual
    9780749115791 Qualification Level B


  • BSI 18 Hand-Scoring Answer Sheets
    9780749154523 Qualification Level B

    Pack of 50. Test items included.


    Estimated to ship:More than 12 weeks
  • BSI 18 Q-global Profile Report
    9780749166076 Qualification Level B

    Tiered pricing discounts available


  • BSI-18 Manual
    9780749154486 Qualification Level B

    Manual - Print


    Estimated to ship:6-7 weeks


Publication date:
Age range:
Individuals 18 years and older
Qualification level:
Completion time:
Approx. 4 minutes (18 items; 5-point rating scale)
Paper-and-pencil, computer or online administration
Guidance on using this test in your telepractice

Product Details

BSI 18 provides an overview of a patient's symptoms and their intensity at a specific point in time. It can be used by psychologists, psychiatrists, physicians, nurses and other health care professionals.


  • Assess patients at intake for psychological problems.
  • Measure symptom change and patient progress during and after treatment.
  • Support managed care decisions.
  • Provide outcomes measurement for treatment programs.


BSI 18 is the latest in an integrated series of test instruments that include the SCL-90-R, BSI (53 questions), and DPRS instruments.

  • Three symptom scales: Somatization, Depression, and Anxiety.
  • Global Severity Index helps measure overall psychological distress level.
  • Dimension and global scores correlate highly (i.e., > .90) with analogous score from the SCL-90-R test based on a large community population.
  • Adult community norms are based on 1,122 individuals (605 males and 517 females). Oncology norms are based on 1,543 individuals (802 males and 741 females).

Sample Reports

Profile reports present raw and normalized T scores for each of the three Primary Symptom Dimensions and the Global Severity Index. Progress reports monitor a client’s progress over time.


Find out how to use this test in your telepractice.

Learn more



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